First in a series of questions aimed at getting an official ruling to prevent people from gaming the system. Or at the very least, getting everyone on the same page.
This question is simple: can cards be played if they have no ability to change the board state?
Easy example, can a player play this card if there are no creatures on the board? In every card game I've ever played(FFG or otherwise) the answer is a resounding no. But players in my community are under the impression they can. Would like an official ruling.
Note that this is a much different case. A pulse effect like Gateway to Dis doesn't need targets and can always be played for the pulse effect and presumably get you amber. But Punch is a card that should not work on an empty board.